# class defs
class A_CLASS(object):
    a_class_i:int = 0
    def __init__(self:"A_CLASS", x:int):
        self.x = x

    def add(self:"A_CLASS", y:int) -> int:
        y = y+self.x
        return y

class B_CLASS(object):
    b_class_i:int = 0

class C_CLASS(B_CLASS):
    pass

# var defs
a_s:str = "a_s"
b_s:str = "b_s"
c_s:str = "c_s"

a_i:int = 0
b_i:int = 0
c_i:int = 0

a_b:bool = False
b_b:bool = False
c_b:bool = False

a_list:[int] = None
b_list:[int] = None
c_list:[int] = None

a_class:A_CLASS = None
b_class:B_CLASS = None
c_class:C_CLASS = None


# fun defs
def f_1() -> object:
    def f_f_1() -> object:
        global a_s # Fails if we change it to z, which doesnt exist in global scope
        pass
    pass

def f_2() -> object:
    f_a_s:str = "s"
    def f_f_2() -> object:
        nonlocal f_a_s # Fails if we change this to a_s which is in global scope but not in upper scope
        pass
    pass

def f_3(x:int) -> str:
    f_b_s:int = 3
    return x*f_b_s


# Declarations
a_list = [1, 2, 3]
b_list = [0, 0, 0]
c_list = [-1, -2, -3]

a_class = A_CLASS(5)
b_class = B_CLASS()
c_class = C_CLASS()


# NEGATIVE TEST CASES - TYPES
c_i = True

c_i + [1] # Bad, addint list to an int

a_i = a_b = z = "Error" # Bad, z is not defined and a_b is boolean

a_s = a_s + 1 # Bad, adding integer to a string

c_s = a_s[a_s] # Bad, indexing with a string variable

b_class.b_class_i = 2 # Bad, object attribute is not assignable

f_1 = 5 # Bad, function is not assignable

f_2 = f_1 # Bad, function is not storable

a_i = b_class.b_class_i = z = 5 # Bad, b_class.b_class_i is not assignable and z is not declared

x_i = "ss" # Bad assignment

a_s = a_i + b_i # Bad, assigning integer to a variable with string type

a_s = a_i == b_i and True # Bad, assigning boolean to a variable with string type

a_list = a_list + a_s # Bad, adding string and list

a_s = a_list[a_s] # Bad, indexing with a string variable and assigning int to str

a_list[1] = "a" # Bad, assigning str to int

a_i = f_3(3) + 5 # Bad, f_3 has string return type but it actually returns an int

f_1()

f_2()

a_i = a_class.add(a_s) # Bad, passing string where method expects int